Larger Image bmp4-a gene expression in Xenopus laevis embryo via in situ hybridization, NF stage 35, lateral view, anterior left. Image copyrighted by: Zorn Lab Copyright © Zorn Lab, Aaron M Zorn Image published in: Zorn Gene Synonyms Species Stage(s) Tissue bmp4.L bmp2b, bmp2b1, bmp-4, bmp4-a, bmp4-b, DVR-4, ofc11, XBMP-4, xbmp4, zyme X. laevis Throughout NF stage 35 and 36 brain eye fin head heart otic vesicle pharyngeal arch intermediate mesoderm liver diverticulum Image source: Community submitted Permanent Image Page Printer Friendly View XB-IMG-37878